Title: $23 Cheap flights from Niwot, CO - Expedia.com ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $23 Cheap flights from Niwot, CO [View $23 flight on Wed, May 20, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:DEN,to:PHX,departure:5/20/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:22.98&airProductToken=AQoxCi8IxnISBDQ3NTMYg2kg77kBKPjFjQMw98aNAzhFQABYAWoEUENfMXIHSzIxWFhTMhIKCAEQARgBKgJGORgBIgQIARABKAIoAzAN) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travelers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only [Niwot Travel Guide](https://expedia.com/Niwot.dx6023562)[Hotels in Niwot](https://expedia.com/Niwot-Hotels.d6023562.Travel-Guide-Hotels)[Things to do in Niwot](https://expedia.com/Things-To-Do-In-Niwot.d6023562.Travel-Guide-Activities)[Car Rentals in Niwot](https://expedia.com/Car-Rentals-In-Niwot.d6023562.Car-Rental-Guide)[Niwot Vacation Packages](https://expedia.com/Niwot.d6023562.Destination-Travel-Guides) ## Popular airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways ## Fly smart with our great value deals Nonstop Carry-on included Lower price than typical - Denver (DEN)Las Vegas (LAS) Thu, Mar 26 Sun, Apr 5 ![Southwest Airlines](https://a.travel-assets.com/air/airlines/wn_sq.svg)Southwest Airlines • Nonstop --- 10-day trip found 14 hours ago 50% less than typical $216 [](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:LAS,departure:3/26/2026TANYT&leg2=from:LAS,to:DEN,departure:4/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-e5313b74ecb24972a69a0a634e9a77ad-1361-1~8.S.1~AQoGCAEQ-5ADEgcI1AQQARgBKAJYAnAAegNiZnOIAe_tmlyQAQGqAQcKA0RFThAAsgEHCgNMQVMQAA~AQoxCi8I15wBEgQyNTQzGINpIIuQASiS04gDMI_UiAM4RkAAWAFqA1dHQXIHRlpOVk4yRQoxCi8I15wBEgQzMTE1GIuQASCDaSjww4kDMN7EiQM4RkAAWAFqA1dHQXIHRkxOV1QyRRIKCAEQARgBKgJXThgBIgQIARABKAIoAygEMAE&medianPrice=592.00&displayPrice=215.80&src=dflp) - Denver (DEN)Las Vegas (LAS) Thu, Mar 26 Sun, Apr 5 ![Southwest Airlines](https://a.travel-assets.com/air/airlines/wn_sq.svg)Southwest Airlines • Nonstop --- 10-day trip found 14 hours ago 50% less than typical $216 [](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:LAS,departure:3/26/2026TANYT&leg2=from:LAS,to:DEN,departure:4/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-d0166ded776c446aa6a1165238f9b6b4-85-1~8.S.1~AQoGCAEQ-5ADEgcI1AQQARgBKAJYAnAAegNiZnOIAeHtmlyqAQcKA0RFThAAsgEHCgNMQVMQAA~AQoxCi8I15wBEgQyNTQzGINpIIuQASiS04gDMI_UiAM4RkAAWAFqA1dHQXIHRlpOVk4yRQoxCi8I15wBEgQyOTkzGIuQASCDaSjxy4kDMN_MiQM4RkAAWAFqA1dHQXIHRkxOV1QyRRIKCAEQARgBKgJXThgBIgQIARABKAIoAygEMAE&medianPrice=592.00&displayPrice=215.80&src=dflp) - Denver (DEN)Las Vegas (LAS) Wed, Mar 18 Sun, Mar 22 ![Southwest Airlines](https://a.travel-assets.com/air/airlines/wn_sq.svg)Southwest Airlines • Nonstop --- 4-day trip found 21 hours ago 35% less than typical $283 [](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:LAS,departure:3/18/2026TANYT&leg2=from:LAS,to:DEN,departure:3/22/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-a3686d3b082045ee90714de942d6948d-721-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcAB6A2Jmc4gBnp2ZXKoBBwoDREVOEACyAQcKA0xBUxAA~AQoxCi8I15wBEgQyNTQzGINpIIuQASiw-YcDMLL6hwM4SkAAWAFqA1dHQXIHSkJOVk4yRQphCi8I15wBEgQyMDg5GIuQASCGMSjZrogDMOWviAM4Q0AAWAFqA1dHQXIHQ0xBVVAyRQouCNecARIEMTU4NhiGMSCDaSigsogDMKeziAM4Q0ABWAFqA1dHQXIHQ0xBVVAyRRIKCAEQARgBKgJXThgBIgQIARABKAIoAygEMAE&medianPrice=550.00&displayPrice=282.60&src=dflp) - Denver (DEN)Phoenix (PHX) Sun, Mar 22 Sat, Mar 28 ![Southwest Airlines](https://a.travel-assets.com/air/airlines/wn_sq.svg)Southwest Airlines • Nonstop --- 6-day trip found 10 hours ago 55% less than typical $217 [](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:PHX,departure:3/22/2026TANYT&leg2=from:PHX,to:DEN,departure:3/28/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-5935e3d8fd1f447daf8421532e612d34-1733-1-st-v5-sos-5935e3d8fd1f447daf8421532e612d34-1616-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcABwAHoDYmZzegNiZnOIAaTam1yqAQcKA0RFThAAsgEHCgNQSFgQAA~AQoxCi8I15wBEgQ0NjAwGINpIO-5ASiSpogDMI-niAM4RUAAWAFqA1dHQXIHRUxOVlIyRRIKCAEQARgBKgJXThgBIgQIARABKAIoAygEMAE.AQpuCjYIxJgBEgQxNTM1GO-5ASDyEiis6ogDMJPriAM4RUAAWAFqCU1BSU5CQVNJQ3IIVkFVU0gxQkMKNAjEmAESAzk1MhjyEiCDaSjU64gDMLbsiAM4RUABWAFqCU1BSU5CQVNJQ3IIVkFVU0gxQkMSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB&medianPrice=627.00&displayPrice=216.60&src=dflp) - Denver (DEN)Phoenix (PHX) Sat, Mar 28 Fri, Apr 3 ![American Airlines](https://a.travel-assets.com/air/airlines/aa_sq.svg)American Airlines • Nonstop --- 6-day trip found 1 hour ago 45% less than typical $205 [](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:PHX,departure:3/28/2026TANYT&leg2=from:PHX,to:DEN,departure:4/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-f88fa0ec9de94a3bb9c79aff40adaa46-1685-1-st-v5-sos-f88fa0ec9de94a3bb9c79aff40adaa46-1696-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcABwAHoDYmZzegNiZnOIAZTZnVyQARuQAQ2qAQcKA0RFThAAsgEHCgNQSFgQAA~AQo0CjIIwYIBEgQxNDE0GINpIO-5ASjy7IgDMOrtiAM4QkAAWAFqBUJBU0lDcghRVkFJWFNCWBIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs.AQoxCi8I15wBEgQzMjY5GO-5ASCDaSi8s4kDMKq0iQM4RkAAWAFqA1dHQXIHRkxOV1IyRRIKCAEQARgBKgJXThgBIgQIARABKAIoAygEMAE&medianPrice=492.00&displayPrice=204.79&src=dflp) - Denver (DEN)Phoenix (PHX) Thu, Mar 26 Sat, Apr 4 ![American Airlines](https://a.travel-assets.com/air/airlines/aa_sq.svg)American Airlines • Nonstop --- 9-day trip found 22 hours ago 45% less than typical $182 [](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:PHX,departure:3/26/2026TANYT&leg2=from:PHX,to:DEN,departure:4/4/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-b2cf418aaa8d4a64b266f790e5c763be-3275-1-st-v5-sos-b2cf418aaa8d4a64b266f790e5c763be-3280-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcABwAHoDYmZzegNiZnOIAeuDmVyQAQGQAQCqAQcKA0RFThAAsgEHCgNQSFgQAA~AQo0CjIIwYIBEgQxNzYyGINpIO-5ASie14gDMJfYiAM4QkAAWAFqBUJBU0lDcghRVkFJWFNCWBIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs.AQoxCi8I15wBEgQ0NzIxGO-5ASCDaSjqwIkDMNPBiQM4SkAAWAFqA1dHQXIHSkpON0gyRRIKCAEQARgBKgJXThgBIgQIARABKAIoAygEMAE&medianPrice=454.00&displayPrice=181.79&src=dflp) - Denver (DEN)Chicago (ORD) Fri, Mar 27 Mon, Mar 30 ![American Airlines](https://a.travel-assets.com/air/airlines/aa_sq.svg)American Airlines • Nonstop --- 3-day trip found 21 hours ago 55% less than typical $160 [](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:ORD,departure:3/27/2026TANYT&leg2=from:ORD,to:DEN,departure:3/30/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-1be37f431a024eb6a5f96e7375222840-1923-1-st-v5-sos-1be37f431a024eb6a5f96e7375222840-1700-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcABwAHoDYmZzegNiZnOIAZykmVyqAQcKA0RFThABsgEHCgNPUkQQAQ~AQozCjEIwYIBEgQyNzcxGINpIK4cKIzfiAMwqeCIAzhCQABYAWoFQkFTSUNyCFNXQUlaTkJYEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw.AQpvCjYIxJgBEgQzNzczGK4cIOO0ASjRg4kDMKOEiQM4RUAAWAFqCU1BSU5CQVNJQ3IIVkFWU0E2QlEKNQjEmAESAzMxNBjjtAEgg2koj4aJAzDQh4kDOEVAAVgBaglNQUlOQkFTSUNyCFZBVlNBNkJREgoIARABGAEqAkRMGAEiBAgBEAEoAigDKAQwAQ&medianPrice=459.00&displayPrice=159.60&src=dflp) - Denver (DEN)Chicago (ORD) Mon, Mar 16 Thu, Mar 19 ![American Airlines](https://a.travel-assets.com/air/airlines/aa_sq.svg)American Airlines • Nonstop --- 3-day trip found 19 hours ago 50% less than typical $160 [](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:ORD,departure:3/16/2026TANYT&leg2=from:MDW,to:DEN,departure:3/19/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-211c67436c684fe8b2d5ddfaafd9be3c-2739-1-st-v5-sos-211c67436c684fe8b2d5ddfaafd9be3c-2738-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcABwAHoDYmZzegNiZnOIAbfcmVyQARiQAQeqAQcKA0RFThAAsgEHCgNDSEkQAg~AQozCjEIwYIBEgQyNzcxGINpIK4cKKzjhwMwyeSHAzhCQABYAWoFQkFTSUNyCFNWQUlYU0JYEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw.AQpvCjYIxJgBEgQzNzk5GOywASDMfCi0iogDMJiLiAM4RUAAWAFqCU1BSU5CQVNJQ3IIVkFWU0E2QlEKNQjEmAESBDEwNjQYzHwgg2ko6IuIAzDzjIgDOEVAAVgBaglNQUlOQkFTSUNyCFZBVlNBNkJREgoIARABGAEqAkRMGAEiBAgBEAEoAigDKAQwAQ&medianPrice=442.00&displayPrice=159.60&src=dflp) - Denver (DEN)Chicago (ORD) Thu, Mar 19 Mon, Mar 23 ![American Airlines](https://a.travel-assets.com/air/airlines/aa_sq.svg)American Airlines • Nonstop --- 4-day trip found 16 hours ago 50% less than typical $160 [](https://www.expedia.com/Flights-Search?leg1=from:DEN,to:ORD,departure:3/19/2026TANYT&leg2=from:MDW,to:DEN,departure:3/23/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-fd75e030d5754c09b10dc70e8fec3e91-3356-1-st-v5-sos-fd75e030d5754c09b10dc70e8fec3e91-3368-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcABwAHoDYmZzegNiZnOIAc23mlyqAQcKA0RFThAAsgEHCgNDSEkQAA~AQozCjEIwYIBEgQyNzcxGINpIK4cKIyFiAMwqYaIAzhCQABYAWoFQkFTSUNyCFFWQVdZU0JYEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw.AQpxCjcIxJgBEgQ1MjU4GOywASDjtAEowrSIAzCFtYgDOEVAAFgBaglNQUlOQkFTSUNyCFZBVlNBNkJRCjYIxJgBEgQyNDMxGOO0ASCDaSiztYgDMPW2iAM4RUABWAFqCU1BSU5CQVNJQ3IIVkFWU0E2QlESCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB&medianPrice=431.00&displayPrice=159.60&src=dflp) ## Cheapest flights from Niwot These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Frontier Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif) Wed, Apr 15 - Wed, Apr 29 DEN Denver LAX Los Angeles $46 Roundtrip found 3 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DEN,to:LAX,departure:4/15/2026TANYT&leg2=from:LAX,to:DEN,departure:4/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:45.96&airProductToken=AQoxCi8IxnISBDMxNTUYg2kgi7gBKNK7igMw9ryKAzhFQABYAWoEUENfMXIHSzIxWFhTMgoxCi8IxnISBDIzNDIYi7gBIINpKJXXiwMwrdiLAzhFQABYAWoEUENfMXIHSzIxWFhTMhIKCAEQARgBKgJGORgBIgQIARABKAIoAzAN) ![Frontier Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif) Wed, Apr 22 - Wed, Apr 29 DEN Denver SAN San Diego $46 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DEN,to:SAN,departure:4/22/2026TANYT&leg2=from:SAN,to:DEN,departure:4/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:45.96&airProductToken=AQowCi4IxnISBDI3MTEYg2kgkmgosoqLAzDOi4sDOEVAAFgBagRQQ18xcgdLMjFYWFMyCjAKLgjGchIEMjgxOBiSaCCDaSj30osDMJLUiwM4RUAAWAFqBFBDXzFyB0syMVhYUzISCggBEAEYASoCRjkYASIECAEQASgCKAMwDQ) ![Frontier Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif) Wed, Mar 25 - Wed, Apr 1 DEN Denver DFW Dallas $46 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DEN,to:DFW,departure:3/25/2026TANYT&leg2=from:DFW,to:DEN,departure:4/1/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:45.96&airProductToken=AQoxCi8IxnISBDI2MzIYg2kgo7EBKOHNiAMw486IAzhFQABYAWoEUENfMXIHSzIxWFhTMgoxCi8IxnISBDI2MzEYo7EBIINpKI2ZiQMwm5qJAzhFQABYAWoEUENfMXIHSzIxWFhTMhIKCAEQARgBKgJGORgBIgQIARABKAIoAzAN) ![Frontier Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif) Wed, Apr 8 - Tue, Apr 14 DEN Denver PHX Phoenix $46 Roundtrip found 3 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DEN,to:PHX,departure:4/8/2026TANYT&leg2=from:PHX,to:DEN,departure:4/14/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:45.96&airProductToken=AQoxCi8IxnISBDIxMDUYg2kg77kBKObniQMw5eiJAzhFQABYAWoEUENfMXIHSzIxWFhTMgoxCi8IxnISBDQ3NjYY77kBIINpKMmvigMwurCKAzhFQABYAWoEUENfMXIHSzIxRVhTMhIMCAEQARgBKgJGOTIAGAEiBAgBEAEoAigDMA0) ![Frontier Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif) Tue, Apr 14 - Tue, Apr 21 DEN Denver MSP Minneapolis $46 Roundtrip found 5 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DEN,to:MSP,departure:4/14/2026TANYT&leg2=from:MSP,to:DEN,departure:4/21/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:45.96&airProductToken=AQowCi4IxnISBDEyOTIYg2kgzHwolLCKAzCKsYoDOEVAAFgBagRQQ18xcgdLMjFFWFMyCjAKLgjGchIEMTE0ORjMfCCDaSi7-IoDMMn5igM4RUAAWAFqBFBDXzFyB0syMUVYUzISCggBEAEYASoCRjkYASIECAEQASgCKAMwDQ) ![Frontier Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif) Wed, Apr 15 - Wed, Apr 22 DEN Denver LAS Las Vegas $46 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DEN,to:LAS,departure:4/15/2026TANYT&leg2=from:LAS,to:DEN,departure:4/22/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:45.96&airProductToken=AQoxCi8IxnISBDE5OTMYg2kgi5ABKJ23igMwm7iKAzhFQABYAWoEUENfMXIHSzIxWFhTMgoxCi8IxnISBDQ2MTIYi5ABIINpKOSKiwMw24uLAzhFQABYAWoEUENfMXIHSzIxWFhTMhIKCAEQARgBKgJGORgBIgQIARABKAIoAzAN) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Sat, Apr 18 - Sat, Apr 25 DEN Denver DFW Dallas $91 Roundtrip found 15 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DEN,to:DFW,departure:4/18/2026TANYT&leg2=from:DFW,to:DEN,departure:4/25/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:90.78&airProductToken=AQo0CjIIwYIBEgQxMzIyGINpIKOxASj-24oDMP3cigM4QkAAWAFqBUJBU0lDcghPV0FJSlNCWBIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Sat, May 2 - Sat, May 9 DEN Denver PHX Phoenix $91 Roundtrip found 19 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DEN,to:PHX,departure:5/2/2026TANYT&leg2=from:PHX,to:DEN,departure:5/9/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:90.81&airProductToken=AQo4CjYI1YIBEgM2MzEYg2kg77kBKI33iwMwiPiLAzhOQABYAWoKMV9iYXNpY2Vjb3IIR0FGNUFaQlMKOAo2CNWCARIDMzM3GO-5ASCDaSjswowDMN_DjAM4TkAAWAFqCjFfYmFzaWNlY29yCEdBRjVBWkJTEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw) ![Southwest Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/wn.gif) Sat, Apr 18 - Sat, Apr 25 DEN Denver DAL Dallas $91 Roundtrip found 13 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DEN,to:DAL,departure:4/18/2026TANYT&leg2=from:DAL,to:DEN,departure:4/25/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:90.81&airProductToken=AQowCi4I15wBEgQzNDMwGINpIINYKMLbigMwv9yKAzhWQABYAWoDV0dBcgdWSk5XSDJFCjAKLgjXnAESBDI4NDEYg1ggg2ko_6mLAzCBq4sDOFZAAFgBagNXR0FyB1ZKTldIMkUSCggBEAEYASoCV04YASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sat, Apr 18 - Tue, Apr 28 DEN Denver SAN San Diego $117 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DEN,to:SAN,departure:4/18/2026TANYT&leg2=from:SAN,to:DEN,departure:4/28/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:116.80&airProductToken=AQozCjEIwaYBEgQxNDkxGINpIJJoKMTZigMw4NqKAzhYQABYAWoFU0FWRVJyCEdIMk9BVUJOCjMKMQjBpgESBDE0OTIYkmggg2korciLAzC-yYsDOFhAAFgBagVTQVZFUnIIR0gyT0FVQk4SDAgBEAEYASoCQVMyABgBIgQIARABKAIoAygEMA0) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.com/deals?rfrr=FTG_SPRING_PROMO_) ## Flights from Niwot: Essential Travel Information | Cheapest flight from Niwot | $46 (roundtrip) | | -------------------------------- | --------------------------------------------------------------------------------- | | Best airlines to fly from Niwot | Frontier Airlines, Alaska Airlines, United, Southwest Airlines, American Airlines | | Cheapest month to fly from Niwot | April | | Niwot IATA code | DEN | | Niwot Country/State | Longmont | | Airline ticket deals from Niwot | $46 - $117 | ## How to Find Cheap Flights from Niwot, CO #### How much is a flight from Niwot? This week, flights from Niwot are available between $46 – $117\. #### How to find cheap flights from Niwot? Expedia makes it easy to compare cheap flights from Niwot to many destinations. Check out excellent deals on domestic and international flights from Niwot. Once you select an offer, use our filters and sort by “Price (Lowest)” to see some of the cheapest and suitable options. #### How can I get the best deal on flights from Niwot? On Expedia, you have some of best airline ticket deals at your fingertips. Whether it’s a beach escape with your partner, a family vacation with your kids, or business trip with colleagues, these low airline ticket prices mean more savings for you. An excellent strategy for finding some of the best deals on flights from Niwot is to be flexible with your dates. Within each offer, you can compare prices for similar timeframes using our “Show flexible dates” feature. Depending on your destination, direct flights from Niwot may be more expensive. Airlines with strict bag policies or fees can also impact your costs. #### What is the best airline to fly from Niwot? At Expedia, we give you all the available options from our reputable partners. Select the airline that best suits your preferences and membership loyalties. You can fly from Niwot with: Frontier Airlines, Alaska Airlines, United, Southwest Airlines, American Airlines. #### What is the best month to fly from Niwot? One of the cheapest times to fly from Niwot airport(s) is April, based on the current list of flights available now. Prices on plane tickets vary considerably throughout the year due to availability and seasonal demand. #### Are there any last-minute flights from Niwot? Expedia is the place to find last-minute flights from Niwot, making it easy for you to compare prices on flights in the near future for different combinations of travel dates and from multiple airlines. We source some of the best deals for you and display some of the best offers available over the next 2 weeks. #### Why book your ticket with Expedia? Booking flights from Niwot with Expedia is the obvious choice to get low prices, save money, and see more value from every dollar spent. We show you some of the best deals happening right now and provide a vast inventory of airlines and flight routes to choose from, so you can find some of the cheapest flights from Niwot. You can customize your journey to your timeline, route preferences, budget, rewards programs, and more. #### Can I change/cancel my flight? Some flights can be changed or canceled, but fees and refunds will depend on the unique terms of your flight agreement. Airlines have different rules and restrictions for exchanging or refunding flights. For more information, go to your itinerary or visit our [customer service portal](https://www.expedia.com/service/). We recommend choosing flights with no change fees for the most flexibility. Filter by “Flexible change policies” to see flights with no change fees. \*Data specialists from both ARC and Expedia Group analysed ARC's global flight data to distil actionable information to help people save money on travel. While it's impossible to guarantee when to find the lowest prices, after examining the variables, we were able to observe trends. Analysis based on ARC, round-trip flight data between 1 October 2017 - 30 September 2018 for Economy and Premium cabin ATPs on a global basis. \*Flight schedules are subject to change. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Other ### Lodging - [Hotels near IBM Boulder Campus ](https://www.expedia.com/IBM-Boulder-Campus-Hotels.0-l6290124-0.Travel-Guide-Filter-Hotels) - [Hotels near Gunbarrel Estates ](https://www.expedia.com/Gunbarrel-Estates-Longmont-Hotels.0-n553248635976480132-0.Travel-Guide-Filter-Hotels) - [Hotels near Haystack Mountain Golf Course ](https://www.expedia.com/Haystack-Mountain-Golf-Course-Hotels.0-l6290538-0.Travel-Guide-Filter-Hotels) - [Hotels near Gunbarrel ](https://www.expedia.com/Gunbarrel-Boulder-Hotels.0-n553248634983170051-0.Travel-Guide-Filter-Hotels) - [Hotels near Boulder Reservoir ](https://www.expedia.com/Boulder-Reservoir-Hotels.0-l6290699-0.Travel-Guide-Filter-Hotels) - [Hotels near Leanin' Tree Museum of Western Art ](https://www.expedia.com/Leanin-Tree-Museum-Of-Western-Art-Hotels.0-l6287370-0.Travel-Guide-Filter-Hotels) - [Hotels near Dougherty Museum ](https://www.expedia.com/Dougherty-Museum-Hotels.0-l553248621561886938-0.Travel-Guide-Filter-Hotels) - [Boulder Hotels ](https://www.expedia.com/Boulder-Hotels.d6051762.Travel-Guide-Hotels) - [Hotels near Mile-Hi-Skydiving ](https://www.expedia.com/Mile-Hi-Skydiving-Hotels.0-l553248621532646967-0.Travel-Guide-Filter-Hotels) - [Hotels near Sunflower Farm ](https://www.expedia.com/Sunflower-Farm-Hotels.0-l630377748375060480-0.Travel-Guide-Filter-Hotels) - [Hotels near Longmont Museum ](https://www.expedia.com/Longmont-Museum-Hotels.0-l6290604-0.Travel-Guide-Filter-Hotels) - [Hotels near Left Hand Brewing Company ](https://www.expedia.com/Left-Hand-Brewing-Company-Hotels.0-l630376323585855488-0.Travel-Guide-Filter-Hotels) - [Longmont Hotels ](https://www.expedia.com/Longmont-Hotels.d8406.Travel-Guide-Hotels) - [Hotels near Wibby Brewing ](https://www.expedia.com/Wibby-Brewing-Hotels.0-l631250103247679488-0.Travel-Guide-Filter-Hotels) - [Cheap Hotels in Longmont ](https://www.expedia.com/Longmont-Hotels-Cheap-Hotels.0-0-d8406-tCheapHotels.Travel-Guide-Filter-Hotels) - [Hotels near Boulder Municipal ](https://www.expedia.com/Boulder-Municipal-Airport-Hotels.0-aWBU-0.Travel-Guide-Filter-Hotels) ### Flights - [Flights to Denver ](https://www.expedia.com/Cheap-Flights-To-Denver.d178254.Travel-Guide-Flights) - [Flights from Boulder Municipal ](https://www.expedia.com/lp/airports/wbu/flights-from-boulder-municipal-airport) - [Flights from Longmont ](https://www.expedia.com/lp/flights/8406/flights-from-longmont) - [Flights from Denver (DEN) to Boulder (WBU) ](https://www.expedia.com/lp/flights/den/wbu/denver-to-boulder) - [Flights from Boston (BOS) to Boulder (WBU) ](https://www.expedia.com/lp/flights/bos/wbu/boston-to-boulder) - [Flights from Los Angeles (LAX) to Boulder (WBU) ](https://www.expedia.com/lp/flights/lax/wbu/los-angeles-to-boulder) - [Flights from New York (JFK) to Boulder (WBU) ](https://www.expedia.com/lp/flights/jfk/wbu/new-york-to-boulder) - [Flights from Chicago (ORD) to Boulder (WBU) ](https://www.expedia.com/lp/flights/ord/wbu/chicago-to-boulder) - [Flights from San Francisco (SFO) to Boulder (WBU) ](https://www.expedia.com/lp/flights/sfo/wbu/san-francisco-to-boulder) - [Flights from Colorado Springs (COS) to Boulder (WBU) ](https://www.expedia.com/lp/flights/cos/wbu/colorado-springs-to-boulder) - [Flights from San Diego (SAN) to Boulder (WBU) ](https://www.expedia.com/lp/flights/san/wbu/san-diego-to-boulder) - [Flights from Seattle (SEA) to Boulder (WBU) ](https://www.expedia.com/lp/flights/sea/wbu/seattle-to-boulder) - [Flights from Houston (IAH) to Boulder (WBU) ](https://www.expedia.com/lp/flights/iah/wbu/houston-to-boulder) - [Flights from Phoenix (PHX) to Boulder (WBU) ](https://www.expedia.com/lp/flights/phx/wbu/phoenix-to-boulder) - [Flights from Austin (AUS) to Boulder (WBU) ](https://www.expedia.com/lp/flights/aus/wbu/austin-to-boulder) - [Flights from Philadelphia (PHL) to Boulder (WBU) ](https://www.expedia.com/lp/flights/phl/wbu/philadelphia-to-boulder) - [Flights from Atlanta (ATL) to Boulder (WBU) ](https://www.expedia.com/lp/flights/atl/wbu/atlanta-to-boulder) - [Flights from Salt Lake City (SLC) to Boulder (WBU) ](https://www.expedia.com/lp/flights/slc/wbu/salt-lake-city-to-boulder) - [Flights from Portland (PDX) to Boulder (WBU) ](https://www.expedia.com/lp/flights/pdx/wbu/portland-to-boulder) - [Flights from Indianapolis (IND) to Boulder (WBU) ](https://www.expedia.com/lp/flights/ind/wbu/indianapolis-to-boulder) - [Flights from Detroit (DTW) to Boulder (WBU) ](https://www.expedia.com/lp/flights/dtw/wbu/detroit-to-boulder) - [Flights from Washington (DCA) to Boulder (WBU) ](https://www.expedia.com/lp/flights/dca/wbu/washington-to-boulder) - [Flights from Las Vegas (LAS) to Boulder (WBU) ](https://www.expedia.com/lp/flights/las/wbu/las-vegas-to-boulder) - [Flights from Baltimore (BWI) to Boulder (WBU) ](https://www.expedia.com/lp/flights/bwi/wbu/baltimore-to-boulder) - [Flights from Raleigh (RDU) to Boulder (WBU) ](https://www.expedia.com/lp/flights/rdu/wbu/raleigh-to-boulder) - [Flights from Charlotte (CLT) to Boulder (WBU) ](https://www.expedia.com/lp/flights/clt/wbu/charlotte-to-boulder) - [Flights from Orange County (SNA) to Boulder (WBU) ](https://www.expedia.com/lp/flights/sna/wbu/orange-county-to-boulder) - [Flights from Minneapolis (MSP) to Boulder (WBU) ](https://www.expedia.com/lp/flights/msp/wbu/minneapolis-to-boulder) - [Flights from San Jose (SJC) to Boulder (WBU) ](https://www.expedia.com/lp/flights/sjc/wbu/san-jose-to-boulder) - [Flights from Hartford (BDL) to Boulder (WBU) ](https://www.expedia.com/lp/flights/bdl/wbu/hartford-to-boulder) - [Flights from Kansas City (MCI) to Boulder (WBU) ](https://www.expedia.com/lp/flights/mci/wbu/kansas-city-to-boulder) - [Flights from Pittsburgh (PIT) to Boulder (WBU) ](https://www.expedia.com/lp/flights/pit/wbu/pittsburgh-to-boulder) - [Flights from Cincinnati (CVG) to Boulder (WBU) ](https://www.expedia.com/lp/flights/cvg/wbu/cincinnati-to-boulder) - [Flights from Nashville (BNA) to Boulder (WBU) ](https://www.expedia.com/lp/flights/bna/wbu/nashville-to-boulder) - [Flights from Tampa (TPA) to Boulder (WBU) ](https://www.expedia.com/lp/flights/tpa/wbu/tampa-to-boulder) - [Flights from Orlando (MCO) to Boulder (WBU) ](https://www.expedia.com/lp/flights/mco/wbu/orlando-to-boulder) - [Flights from New York (NYC) to Boulder (WBU) ](https://www.expedia.com/lp/flights/nyc/wbu/new-york-to-boulder) - [Flights from St. Louis (STL) to Boulder (WBU) ](https://www.expedia.com/lp/flights/stl/wbu/st-louis-to-boulder) - [Flights from Miami (MIA) to Boulder (WBU) ](https://www.expedia.com/lp/flights/mia/wbu/miami-to-boulder) - [Flights from San Antonio (SAT) to Boulder (WBU) ](https://www.expedia.com/lp/flights/sat/wbu/san-antonio-to-boulder) - [Flights from Columbus (CMH) to Boulder (WBU) ](https://www.expedia.com/lp/flights/cmh/wbu/columbus-to-boulder) - [Flights from Milwaukee (MKE) to Boulder (WBU) ](https://www.expedia.com/lp/flights/mke/wbu/milwaukee-to-boulder) - [Flights from Cleveland (CLE) to Boulder (WBU) ](https://www.expedia.com/lp/flights/cle/wbu/cleveland-to-boulder) - [Flights from Des Moines (DSM) to Boulder (WBU) ](https://www.expedia.com/lp/flights/dsm/wbu/des-moines-to-boulder) - [Flights from Burbank (BUR) to Boulder (WBU) ](https://www.expedia.com/lp/flights/bur/wbu/burbank-to-boulder) - [Flights from New Orleans (MSY) to Boulder (WBU) ](https://www.expedia.com/lp/flights/msy/wbu/new-orleans-to-boulder) - [Flights from Fort Collins (FNL) to Boulder (WBU) ](https://www.expedia.com/lp/flights/fnl/wbu/fort-collins-to-boulder) - [Flights from Fort Lauderdale (FLL) to Boulder (WBU) ](https://www.expedia.com/lp/flights/fll/wbu/fort-lauderdale-to-boulder) - [Flights from Albuquerque (ABQ) to Boulder (WBU) ](https://www.expedia.com/lp/flights/abq/wbu/albuquerque-to-boulder) - [Flights from Jacksonville (JAX) to Boulder (WBU) ](https://www.expedia.com/lp/flights/jax/wbu/jacksonville-to-boulder) - [Flights from Grand Rapids (GRR) to Boulder (WBU) ](https://www.expedia.com/lp/flights/grr/wbu/grand-rapids-to-boulder) - [Flights from Flagstaff (FLG) to Boulder (WBU) ](https://www.expedia.com/lp/flights/flg/wbu/flagstaff-to-boulder) - [Flights from Lafayette (LFT) to Boulder (WBU) ](https://www.expedia.com/lp/flights/lft/wbu/lafayette-to-boulder) - [Flights from Washington (IAD) to Boulder (WBU) ](https://www.expedia.com/lp/flights/iad/wbu/washington-to-boulder) - [Flights from New York (LGA) to Boulder (WBU) ](https://www.expedia.com/lp/flights/lga/wbu/new-york-to-boulder) - [Flights from Buffalo (BUF) to Boulder (WBU) ](https://www.expedia.com/lp/flights/buf/wbu/buffalo-to-boulder) - [Flights from Cedar Rapids (CID) to Boulder (WBU) ](https://www.expedia.com/lp/flights/cid/wbu/cedar-rapids-to-boulder) - [Flights from Greenville (GSP) to Boulder (WBU) ](https://www.expedia.com/lp/flights/gsp/wbu/greenville-to-boulder) - [Flights from Asheville (AVL) to Boulder (WBU) ](https://www.expedia.com/lp/flights/avl/wbu/asheville-to-boulder) - [Flights from Fort Myers (RSW) to Boulder (WBU) ](https://www.expedia.com/lp/flights/rsw/wbu/fort-myers-to-boulder) - [Flights from Dallas (DFW) to Boulder (WBU) ](https://www.expedia.com/lp/flights/dfw/wbu/dallas-to-boulder) - [Flights from Oakland (OAK) to Boulder (WBU) ](https://www.expedia.com/lp/flights/oak/wbu/oakland-to-boulder) - [Flights from Birmingham (BHX) to Boulder (WBU) ](https://www.expedia.com/lp/flights/bhx/wbu/birmingham-to-boulder) - [Flights from White Plains (HPN) to Boulder (WBU) ](https://www.expedia.com/lp/flights/hpn/wbu/white-plains-to-boulder) - [Flights from Gunnison (GUC) to Boulder (WBU) ](https://www.expedia.com/lp/flights/guc/wbu/gunnison-to-boulder) - [Flights from Scottsdale (SCF) to Boulder (WBU) ](https://www.expedia.com/lp/flights/scf/wbu/scottsdale-to-boulder) - [Flights from Jackson (JAN) to Boulder (WBU) ](https://www.expedia.com/lp/flights/jan/wbu/jackson-to-boulder) - [Flights from Toronto (YYZ) to Boulder (WBU) ](https://www.expedia.com/lp/flights/yyz/wbu/toronto-to-boulder) ### Packages - [IBM Boulder Campus ](https://www.expedia.com/IBM-Boulder-Campus-Longmont.d6290124.Vacation-Attraction) - [Haystack Mountain Golf Course ](https://www.expedia.com/Haystack-Mountain-Golf-Course-Longmont.d6290538.Vacation-Attraction) - [Boulder Reservoir ](https://www.expedia.com/Boulder-Reservoir-Boulder.d6290699.Vacation-Attraction) - [Leanin' Tree Museum of Western Art ](https://www.expedia.com/Leanin-Tree-Museum-Of-Western-Art-Boulder.d6287370.Vacation-Attraction) - [Dougherty Museum ](https://www.expedia.com/Dougherty-Museum-Longmont.d553248621561886938.Vacation-Attraction) - [Mile-Hi-Skydiving ](https://www.expedia.com/Mile-Hi-Skydiving-Longmont.d553248621532646967.Vacation-Attraction) - [Left Hand Brewing Company ](https://www.expedia.com/Left-Hand-Brewing-Company-Longmont.d630376323585855488.Vacation-Attraction) - [Sawhill Ponds Trailhead ](https://www.expedia.com/Sawhill-Ponds-Trailhead-Boulder.d553248621532647100.Vacation-Attraction) ### Cars - [Car rentals near Gunbarrel ](https://www.expedia.com/Car-Rentals-In-Gunbarrel.d553248634983170051.Car-Rental-Guide) - [Pickup Car Rentals near Boulder Reservoir ](https://www.expedia.com/Pickup-Car-Rentals-In-Boulder-Reservoir.d6290699-tPickup.Car-Rental-Guide-Class) - [Minivan Car Rentals near Sawhill Ponds Trailhead ](https://www.expedia.com/Minivan-Car-Rentals-In-Sawhill-Ponds-Trailhead.d553248621532647100-tMinivan.Car-Rental-Guide-Class) - [Car rentals near Longmont ](https://www.expedia.com/Car-Rentals-In-Longmont.d8406.Car-Rental-Guide) - [Car rentals near Denver ](https://www.expedia.com/Car-Rentals-In-Denver.d178254.Car-Rental-Guide) - [Car rental Boulder Airport (WBU) ](https://www.expedia.com/Car-Rentals-In-Boulder-Municipal.d6033058.Car-Rental-Guide) ### Other - [Things to do in Longmont ](https://www.expedia.com/Things-To-Do-In-Longmont.d8406.Travel-Guide-Activities) \*Available to One Key members.